Magnetic lock



(Ndmoael.) l

A. E. KINTNER.

MAGNETIC LOCK.

No. 468,807.V Patented Feb. 16, 1892.

UNITED STATES PATENT OFFICE.

ALOUIN E. IIINTNER, OF PAINESVILLE, OHIO.

MAGNETIC LOCK.

SPECIFICATION forming part of Letters Patent No. 468,840?, datedFebruary 16, 1892.

Application filed September 3, 1891. Serial No. 404,628. (No model.)

' To aZZ whom t may concern:

Be it known that I, ALCUIN E. KINTNER, a citizen ofthe United States,residing at Painesville, in the county of Lake and State of Ohio, haveinvented a certain new and Improved llllagnetic Lock, of which thefollowing is a specification.

The nature of my invention relates to a lock having a series of iron orsteel tumblers therein, which are attracted by a magnetic key, therebyadmitting the easy opening of the lock in the manner hereinafter shownand explained.

That the invention may be fully seen and understood by others, referencewill be had to the following specification and drawings, and for thepurpose of showing the nature of the said invention one form of a lockis shown and described.

Figure l is a vertical longitudinal section of a padlock, showingmyinvention in connection therewith. Fig. 2'is a horizontalcross-section on line fr x, Fig. l. Fig. 3 is a cross-section on lineand Figs. 4 and 5 are cross-sections on lines rc2 002 and x3 :123,respectively. Fig. (3 illustrates the lock closed. Fig. 7 illustratesthe lock open. Figs. 8 and 9 are enlarged views of the magnetic key usedin connection with the lock and hereinafter fully explained.

In the drawings annexed hereunto one form of a padlock is shown, thefollowing description referring to said lock. I do not, however, confinemyself to padlocks alone, as it will be readily seen from thespecication that the principal which I claim can be applied to anylock-that is to say, different locks for different purposes, such asmortise-locks, iipat interior spring-locks, the., can be constructed enrbodying my improvement.

In the drawings, A denotes the body of the lock, and B the clasp orbolt, the arms a and a thereof entering into the two chambers b and b ofthe body A. The arms Ct and a are notched, as shown at c and c', Figs.l, 2, and 7. (Best shown in Fig. 7.)

Pivoted to the body of the lock, on the interior thereof, is thecross-arm O. The ends of said cross-arm being held in the notches c c ofthe clasp by the spring CZ, Fig. 2. A casing D is rigidly itted in thebody of the lock from the lower side, as shown in Figs. 1 3, 4, and 5,or it may be an integral part of the body of the lock. The casing D hasa vportion This cylinder, as well as casing D, should be constructed ofnon-magnetic metal.

In the construction of the cylinder E lies the important features of theinvention. Said cylinder is constructed as follows: A pin f, Figs. l and3, is rigidly attached thereto and extends through the cut-away portionof the casing D. The chamber g is in open connection with the key-hole7L. A pin i is rigidly secured across said chamber,near the innerterminal thereof, near the outer terminal of the shell. Beyond the outerextremity of the casing D is arranged a series of steel or iron tumblers7c k 7s Zt, (these tumblers being preferably of cast-iron, as that willnot retain the 1nagnetism,) which work .'ooselyin said shell E, theouter terminals of the tumblers Zi; resting on the outer edge of thecasing D.

I will now describe the practical working of the lock. A key the shank mof which is magnetized and similar in form to the one shown in Figs. 8and 9 is slotted or sawed, as shown in Figs. 8 and 9 at Z. The magnetismof the shank of the key upon said key entering the chamber g willattract the tumblers lo, drawing them from their contact with the casingD and permitting the cylinder E to be forced inward against theresiliency of the spring c, forcing the pin f alongside of the cross-barO. The slot Z of the key will engage the` pin e' and by a partialrevolution of the key, the pinfbeing in contact with the side of thecross-arm O, will release said cross-arm from the notches c and cwhen,owing to the resiliency of the spiral spring a, Fig. l, the arm a of theclasp or bolt B will be raised out of the chamber ZJ and the lock isopen, as shown in Fig. 7. In closing the lock it is simply necessary toforce the clasp into the chambers b and b', and when the cross-arm Oregisters with the notches c and c the resiliency of the spring (Z, Fig.2, will force the said cross-arm into the notches and retain it thereinuntil released by means of thek key.

The key shown in Figs. 8 and 9 is provided with a covering o and whennot in use is ICO The casing of said key is simply for convenience incarrying said key in the pocket with other keys or magnetic articles.

Having described my invention, what I claim, and desire to secure byLetters Patent= 1. In amagnetic lock, the combination of a series oftumblers arranged loosely within a cylinder, said cylinder Within acasing D, havin gan opening therein, and a pivotal crossarm C, operatingconjointly with a pin f, attached to the cylinder and in contact withthe cross-arm C, actuated by a grooved inagnetic key, substantially inthe manner as an for the purpose set forth.

2. In a magnetic lock, a cross-arm pivoted zo Within a cylinder, theterminals of said crossarm susceptible of engagement and disengagementwith the notches c and c', in combination With the pin jtumblers 7o kk7o, and casing D, in conjoint operation with a slotted magnetic key andengaging pin i, arranged in the manner as and substantially for thepurpose set forth. A

3. In a magnetic look, a series of non-magnetized tumblers arrangedWithin a cylinder around the key-opening, in combination With the pin f,cross-arm C, engaging pin 1'., and the slotted magnetic key whereby thebolt is readily disengaged and the lock opened, substantially in themanner set forth.

` In testimony whereof I affix my signature in presence of twoWitnesses. I

ALCUIN E. KINTNER. fitnessesz SEXTUs SLOAN, IRWIN-S. CHILDS.

